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Lab-Grown Diamond Necklaces
Explore KAY's lab-grown diamond necklaces, combining timeless beauty with sustainability. Shop solitaire styles, unique pendants, and more sparkling lab-created diamond styles.
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$2,099.99 (30% off)$2,999.99
![Toi et Moi Emerald-Cut & Pear-Shaped Necklace 1 ct tw 14K White Gold 18"](/productimages/processed/V-981508803_0_260.jpg?pristine=true "Toi et Moi Emerald-Cut & Pear-Shaped Necklace 1 ct tw 14K White Gold 18"")
![Lab-Created Diamonds by KAY Marquise & Round-Cut Cross Necklace 3/4 ct tw 10K White Gold 18"](/productimages/processed/V-788201705_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Marquise & Round-Cut Cross Necklace 3/4 ct tw 10K White Gold 18"")
![Lab-Created Diamonds by KAY Pear-Shaped & Round-Cut Teardrop Necklace 1/2 ct tw 10K White Gold 18"](/productimages/processed/V-751361508_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Pear-Shaped & Round-Cut Teardrop Necklace 1/2 ct tw 10K White Gold 18"")
![Men's Lab-Created Diamonds by KAY Tennis Necklace 8 ct tw 10K White Gold 20"](/productimages/processed/V-182913905_0_260.jpg?pristine=true "Men's Lab-Created Diamonds by KAY Tennis Necklace 8 ct tw 10K White Gold 20"")
![Lab-Created Diamonds by KAY Riviera Necklace 10 ct tw 14K White Gold 16"](/productimages/processed/V-174614204_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Riviera Necklace 10 ct tw 14K White Gold 16"")
![Lab-Created Diamonds by KAY Circle Halo Necklace 1/2 ct tw 10K White Gold 18"](/productimages/processed/V-723359206_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Circle Halo Necklace 1/2 ct tw 10K White Gold 18"")
![Lab-Created Diamonds by KAY Cross Necklace 1/2 ct tw 14K Yellow Gold 18"](/productimages/processed/V-580951200_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Cross Necklace 1/2 ct tw 14K Yellow Gold 18"")
![Unstoppable Love Lab-Created Diamond Necklace 1 ct tw 14K Yellow Gold 19"](/productimages/processed/V-431912308_0_260.jpg?pristine=true "Unstoppable Love Lab-Created Diamond Necklace 1 ct tw 14K Yellow Gold 19"")
![Lab-Created Diamonds by KAY Heart Necklace 1 ct tw 14K White Gold 18"](/productimages/processed/V-174174704_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Heart Necklace 1 ct tw 14K White Gold 18"")
![Lab-Created Diamonds by KAY Necklace 1/2 ct tw 14K White Gold 19"](/productimages/processed/V-174094502_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Necklace 1/2 ct tw 14K White Gold 19"")
![Lab-Created Diamonds by KAY Necklace 1/2 ct tw 14K White Gold 18" (F/SI2)](/productimages/processed/V-190283109_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Necklace 1/2 ct tw 14K White Gold 18" (F/SI2)")
![Lab-Created Diamonds by KAY Cross Necklace 1/3 ct tw 14K White Gold 18"](/productimages/processed/V-762138903_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Cross Necklace 1/3 ct tw 14K White Gold 18"")
![Lab-Created Diamonds by KAY Graduated Riviera Necklace 7 ct tw 14K White Gold 17.7"](/productimages/processed/V-581479805_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Graduated Riviera Necklace 7 ct tw 14K White Gold 17.7"")
![Previously Owned Lab-Created Diamonds by KAY Double Strand Necklace 5 ct tw 10K White Gold 17"](/productimages/processed/V-887223509_0_260.jpg?pristine=true "Previously Owned Lab-Created Diamonds by KAY Double Strand Necklace 5 ct tw 10K White Gold 17"")
![Lab-Created Diamonds by KAY Pear-Shaped Solitaire Necklace 1/2 ct tw 14K White Gold 19" (F/SI2)](/productimages/processed/V-190284000_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Pear-Shaped Solitaire Necklace 1/2 ct tw 14K White Gold 19" (F/SI2)")
![Lab-Created Diamonds by KAY Emerald-Cut Sideways Solitaire Necklace 1/2 ct tw 14K Yellow Gold 18"](/productimages/processed/V-190354009_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Emerald-Cut Sideways Solitaire Necklace 1/2 ct tw 14K Yellow Gold 18"")
![Lab-Created Diamonds by KAY Round-Cut Solitaire Necklace 1/2 ct tw 14K Yellow Gold 19"](/productimages/processed/V-190314500_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Round-Cut Solitaire Necklace 1/2 ct tw 14K Yellow Gold 19"")
![Lab-Created Diamonds by KAY Cross Necklace 1 ct tw 14K White Gold 18"](/productimages/processed/V-200534701_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Cross Necklace 1 ct tw 14K White Gold 18"")
![Lab-Created Diamonds by KAY Riviera Necklace 7 ct tw 14K White Gold 16"](/productimages/processed/V-174614305_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Riviera Necklace 7 ct tw 14K White Gold 16"")
![Threads of Love Oval-Cut Lab-Created Diamond Halo Necklace 1-1/2 ct tw 14K Two-Tone Gold 18"](/productimages/processed/V-142166002_0_260.jpg?pristine=true "Threads of Love Oval-Cut Lab-Created Diamond Halo Necklace 1-1/2 ct tw 14K Two-Tone Gold 18"")
![Lab-Created Diamonds by KAY Marquise, Oval, Princess, Round & Pear-Shaped Cluster Necklace 1 ct tw 14K White Gold 18"](/productimages/processed/V-182959700_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Marquise, Oval, Princess, Round & Pear-Shaped Cluster Necklace 1 ct tw 14K White Gold 18"")
![Lab-Created Diamonds by KAY Princess-Cut Solitaire Necklace 1/2 ct tw 14K White Gold 19" (F/SI2)](/productimages/processed/V-190284101_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Princess-Cut Solitaire Necklace 1/2 ct tw 14K White Gold 19" (F/SI2)")
![Lab-Created Diamonds by KAY Round-Cut Solitaire Necklace 1/2 ct tw 14K Rose Gold 19"](/productimages/processed/V-190314601_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Round-Cut Solitaire Necklace 1/2 ct tw 14K Rose Gold 19"")
![Lab-Created Diamonds by KAY Princess-Cut Solitaire Necklace 1/2 ct tw 14K Yellow Gold 19"](/productimages/processed/V-190314702_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Princess-Cut Solitaire Necklace 1/2 ct tw 14K Yellow Gold 19"")
![Lab-Created Diamonds by KAY Princess-Cut Solitaire Necklace 1/2 ct tw 14K Rose Gold 19"](/productimages/processed/V-190314803_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Princess-Cut Solitaire Necklace 1/2 ct tw 14K Rose Gold 19"")
![Lab-Created Diamonds by KAY Oval-Cut Sideways Solitaire Necklace 1/3 ct tw 14K White Gold 18"](/productimages/processed/V-190353300_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Oval-Cut Sideways Solitaire Necklace 1/3 ct tw 14K White Gold 18"")
![Lab-Created Diamonds by KAY Oval-Cut Sideways Solitaire Necklace 1/2 ct tw 14K White Gold 18"](/productimages/processed/V-190353401_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Oval-Cut Sideways Solitaire Necklace 1/2 ct tw 14K White Gold 18"")
![Lab-Created Diamonds by KAY Oval-Cut Sideways Solitaire Necklace 1/2 ct tw 14K Yellow Gold 18"](/productimages/processed/V-190353603_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Oval-Cut Sideways Solitaire Necklace 1/2 ct tw 14K Yellow Gold 18"")
![Lab-Created Diamonds by KAY Emerald-Cut Sideways Solitaire Necklace 1/3 ct tw 14K White Gold 18"](/productimages/processed/V-190353704_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Emerald-Cut Sideways Solitaire Necklace 1/3 ct tw 14K White Gold 18"")
![Lab-Created Diamonds by KAY Emerald-Cut Sideways Solitaire Necklace 1/2 ct tw 14K White Gold 18"](/productimages/processed/V-190353805_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Emerald-Cut Sideways Solitaire Necklace 1/2 ct tw 14K White Gold 18"")
![Lab-Created Diamonds by KAY Emerald-Cut Sideways Solitaire Necklace 1/3 ct tw 14K Yellow Gold 18"](/productimages/processed/V-190353906_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Emerald-Cut Sideways Solitaire Necklace 1/3 ct tw 14K Yellow Gold 18"")
![Toi et Moi Round & Marquise-Cut Necklace 1/2 ct tw 14K White Gold 18"](/productimages/processed/V-190361701_0_260.jpg?pristine=true "Toi et Moi Round & Marquise-Cut Necklace 1/2 ct tw 14K White Gold 18"")
![Toi et Moi Emerald-Cut & Pear-Shaped Necklace 1 ct tw 14K Yellow Gold 18"](/productimages/processed/V-190361802_0_260.jpg?pristine=true "Toi et Moi Emerald-Cut & Pear-Shaped Necklace 1 ct tw 14K Yellow Gold 18"")
![Lab-Created Diamonds by KAY Marquise, Princess, Oval, Pear & Round-Cut Drop Necklace 1-1/2 ct tw 14K White Gold 18"](/productimages/processed/V-190365003_0_260.jpg?pristine=true "Lab-Created Diamonds by KAY Marquise, Princess, Oval, Pear & Round-Cut Drop Necklace 1-1/2 ct tw 14K White Gold 18"")
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